gdiplus/tests: Add tests for GdipDrawCurve2I.
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 4d7f096..c052bc3 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -1514,7 +1514,7 @@
 
     TRACE("(%p, %p, %p, %d, %.2f)\n", graphics, pen, points, count, tension);
 
-    if(!points || count <= 0)
+    if(!points)
         return InvalidParameter;
 
     pointsF = GdipAlloc(sizeof(GpPointF)*count);